package 一六B;

/**
 * Created by lenovo on 2017/3/28.
 */
public class q2 {
    public static void main(String[] args){
        for(int i=1;i<100;i++){
            int sum = 0;
            for(int j=i;j<100;j++){
                sum+=j;
                if(sum==236){
                    System.out.println(i);
                    break;
                }else if(sum>236){
                    break;
                }
            }
        }
    }
}
